PreviewBrowser vs OpenSTARS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PreviewBrowser
This application serves as a specialized tool for educators to review test items on iOS devices. It is designed for use with the Level12 delivery platform and is not intended for general public access.
- Test item review
- iOS device compatibility
- Level12 platform integration
- Educator-specific tool
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Note *** This app is not intended for general public use. The Preview Browser is a tool used by selected educators to review test items on iOS devices for the Level12 delivery platform.
OpenSTARS
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OpenSTARS is an air traffic control radar simulation game inspired by terminal radar operations. Guide aircraft through a compact training sector, issue heading, altitude, and speed commands, and keep aircraft safely separated while routing each flight to its assigned exit gate. Features: - Offline radar simulation - Typed ATC-style commands - Heading, altitude, and speed control - Separation alerts and scoring - Multiple difficulty levels - No account, subscription, or network login required OpenSTARS is built as a focused game and training-style challenge. It is not for real-world navigation, flight operations, or live air traffic control.
Screenshots
Verdict
The clearest difference is device support: OpenSTARS at 3 against PreviewBrowser's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | PreviewBrowser | OpenSTARS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 7 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPad | iPhone, iPad, iPod — better |
| Requires iOS | 14.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 50 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | NWEA | WILLIAM ERNEST MACOMBER |
In-app purchases
PreviewBrowser
No in-app purchases
OpenSTARS
No in-app purchases
